You are assuming revelations is more than it is. Rome wasn't built in a day and Rome did not fall in a day. But Rome did fall.Fundamentalist and mainstream Christians make up their own eschatology, disregarding the timelines. If the events of Revelation and the Olivet Discourse occurred in AD 70, then Bible prophecy regarding Rome falls short by 300 years. If those events have not yet happened, then prophecies regarding Rome were overshot by 1500 years.Revelations is about the end of the Roman Empire, not the end of days.
It isn't about the end of the Roman empire.. its about the end of Temple Judaism. The Roman empire ended in the late summer of 476 AD..
Most Christians just don't think critically, so they cannot articulate Christianity.